答：Unused battery anode surface of water droplets...
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CR1620 Battery
Battery Model: CR1620 battery
Battery Size: 16.0 * 2.0 (mm)
Standard voltage: 3V
Rated capacity: 68 (mAh)
Description: cr1620 lithium manganese battery,mainly for the luminous gifts and toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators...。
1、cr1620 battery composition and process characteristics: manganese, electrolytes, stainless steel shell cover, apron, isolation, zinc and so on: the use of advanced leak fluid technology, with excellent wear resistance, high temperature materials, wide temperature range and leak fluid performance, long life, high safety, no explosion, no fire and so on.
2, cr1620 batteries application areas: electronic gift factory, toy factory, a clock factory, remote control, factory and so on.
Note:
One, because this is a non-rechargeable cr1620Button batteries, so forced charging will cause leakage or risk of damage to the equipment.
Second, the battery "-" pole should be in accordance with the required direction using the device is installed correctly.
Third, prohibit short, heat, burning and open the battery.
Fourth, the battery Operating temperature: -10 ℃ - 60 ℃; Storage temperature: -10 ℃ - 45 ℃.